Follow-up from "Docs: Full Copy Edit and Refactor of Issues docs"

The following discussions from !27553 (merged) should be addressed:

@eread started a discussion:
This section now appears below and Sample CSV file data: doesn't appear needed. Or, you're missing your sample.
@eread started a discussion:
```
server's timezone.
```
I don't think it adds much.
@eread started a discussion:

Why do we need the many qualifier?

When typing in the title in the **New Issue** page, GitLab searches titles and descriptions

@eread started a discussion:

It looks like we lost this section altogether. I don't see it anywhere.

In order to change the default issue closing pattern, GitLab administrators must edit the